Kramer VA-10 User manual

KRAMER ELECTRONICS LTD.
USER MANUAL
MODEL:
VA-10
Cable Delay Corrector
P/N: 2900-000052 Rev 2

VA-10 – Contents i
Contents
1Introduction 1
2Getting Started 2
2.1Achieving the Best Performance 2
3Overview 3
3.1Defining the VA-10 Cable Delay Corrector 3
4Connecting the VA-10 5
5Technical Specifications 7
Figures
Figure 1: VA-10 Cable Delay Corrector 3
Figure 2: Connecting the VA-10 Cable Delay Corrector 6

VA-10 - Introduction 1
1 Introduction
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been
providing a world of unique, creative, and affordable solutions to the vast range of
problems that confront the video, audio, presentation, and broadcasting
professional on a daily basis. In recent years, we have redesigned and upgraded
most of our line, making the best even better!
Our 1,000-plus different models now appear in 11 groups that are clearly defined
by function: GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix
Switchers; GROUP 3: Control Systems; GROUP 4: Format/Standards Converters;
GROUP 5: Range Extenders and Repeaters; GROUP 6: Specialty AV Products;
GROUP 7: Scan Converters and Scalers; GROUP 8: Cables and Connectors;
GROUP 9: Room Connectivity; GROUP 10: Accessories and Rack Adapters and
GROUP 11: Sierra Products.
Congratulations on purchasing your Kramer VA-10 Cable Delay Corrector, which
is ideal for the following typical applications:
•Using long cable runs of analog video
•Correcting relative color shifts in RGBHV systems

2 VA-10 - Getting Started
2 Getting Started
We recommend that you:
•Unpack the equipment carefully and save the original box and packaging
materials for possible future shipment
•Review the contents of this user manual
Use Kramer high performance high resolution cables.
Go to http://www.kramerelectronics.com to check for up-to-date
user manuals, application programs, and to check if firmware
upgrades are available (where appropriate).
Caution: No operator serviceable parts inside the unit
Warning: Use only the Kramer Electronics input power wall
adapter that is provided with the unit
Warning: Disconnect the power and unplug the unit from the
wall before installing
2.1 Achieving the Best Performance
To achieve the best performance:
•Use only good quality connection cables to avoid interference, deterioration
in signal quality due to poor matching, and elevated noise levels (often
associated with low quality cables)
•Avoid interference from neighboring electrical appliances that may adversely
influence signal quality
•Position your Kramer VA-10 away from moisture, excessive sunlight and
dust
i
!

VA-10 - Overview 3
3 Overview
The Kramer VA-10 Cable Delay Corrector is a cable delay (skew) corrector for RGB
signals. The unit is designed to correct the problem of differing delay times in
analog signals, such as RGB, or twisted pair signals that causes misconvergence
on the display. The VA-10 lets you adjust and thus match the delays in the three
signals. The VA-10 features controls for adjusting the red, green and blue skew
(delay) individually and independently. It is 12V DC fed and is housed in a Kramer
TOOLS enclosure.
For example, if the RGB was sent via a CAT 5 cable at some stage during the video
processing, then the different lengths of the pairs within the CAT 5 cable create different
delays (skewing) of the R, G and B.
3.1 Defining the VA-10 Cable Delay Corrector
This section defines the VA-10.
Figure 1: VA-10 Cable Delay Corrector

4 VA-10 - Overview
# Feature Function
1 12V DC +12V DC connector for powering the unit
2 15-pin HD (F) OUTPUT Connector Connects to the output acceptor
3 15-pin HD (F) INPUT Connector Connects to the input source
4
DELAY
CONTROL
BLUE Trimmer Adjusts the blue delay (up to 62ns)
Insert a screwdriver into the small hole and carefully
rotate it to adjust the delay
5 GREEN Trimmer Adjusts the green delay (up to 62ns)
Adjust as above
6 RED Trimmer Adjusts the red delay (up to 62ns)
Adjust as above
7 ON LED Illuminates when receiving power

VA-10 - Connecting the VA-10 5
4 Connecting the VA-10
Always switch off the power to each device before connecting it to your
VA-10. After connecting your VA-10, connect its power and then
switch on the power to each device.
To connect the VA-10 (as the example in Figure 2 illustrates), do the following:
1. Connect a computer graphics source to the XGA INPUT of a PT-110 XGA
Line Transmitter and connect the LINE OUTPUT on the PT-110 to the LINE
IN RJ-45 connector on a TP-120 XGA Line Receiver unit. Connect the XGA
OUT connector on the TP-120 unit to the 15-pin HD (F) INPUT connector on
the VA-10.
Refer to the PT-110, WP-110, TP-120 user manuals that can be downloaded at
http://www.kramerelectronics.com.
2. Connect the 15-pin HD (F) OUTPUT connector on the VA-10, to the RGB
acceptor (for example, a projector).
3. On each of the VA-10, TP-120 and PT-110, connect the 12V DC power adapter
to the power socket and connect the adapter to the mains electricity.
4. Use the BLUE, RED and GREEN trimmers to adjust the blue, red and green
color delays, as required.
i

6 VA-10 - Connecting the VA-10
Figure 2: Connecting the VA-10 Cable Delay Corrector

VA-10 - Technical Specifications 7
5 Technical Specifications
INPUTS: 1 analog red, green, blue input signals - 0.7 Vpp/75Ω,
H & V sync, TTL level, on an 15-pin HD (F) connector
OUTPUTS: 1 analog red, green, blue output signals - 0.7
Vpp/75Ω, H & V sync, TTL level, on an 15-pin HD (F)
connector
MAX. OUTPUT LEVEL: 1Vpp
RESOLUTION: Up to UXGA
DIFF. GAIN: 0.8%
DIFF. PHASE: 0.7Deg
K-FACTOR: 0.4%
S/N RATIO: 71dB
CONTROLS: Delay control via 3 (RGB) trimmers, 0 to 62ns
COUPLING: AC
OPERATING TEMPERATURE: 0° to +55°C (32° to 131°F)
STORAGE TEMPERATURE: -45° to +72°C (-49° to 162°F)
HUMIDITY: 10% to 90%, RHL non-condensing
POWER SOURCE: 12 VDC, 150mA
DIMENSIONS: 12 cm x 7.5 cm x 2.5 cm (4.7" x 2.95" 0.98", W, D, H)
WEIGHT: 0.3 kg (0.67 lbs.) approx
ACCESSORIES: Power supply, mounting bracket
OPTIONS: RK-T3 19" rack adapter
Specifications are subject to change without notice at http://www.kramerelectronics.com

8 VA-10 - Technical Specifications

For the latest information on our products and a list of Kramer distributors,
visit our Web site where updates to this user manual may be found.
We welcome your questions, comments, and feedback.
Web site: www.kramerelectronics.com
E-mail: [email protected]m
!
SAFETY WARNING
Disconnect the unit from the power
supply before opening and servicing